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Show meaningful MySQL errors when startup fails

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This commit is contained in:
Andris Reinman 2016-04-26 15:46:29 +03:00
parent e396219c03
commit a3bd7fa779
2 changed files with 7 additions and 1 deletions
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2
index.js
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@ -34,7 +34,7 @@ let server = http.createServer(app);
// Check if database needs upgrading before starting the server // Check if database needs upgrading before starting the server
dbcheck(err => { dbcheck(err => {
if (err) { if (err) {
log.error('DB', err); log.error('DB', err.message || err);
return process.exit(1); return process.exit(1);
} }
/** /**

6
lib/dbcheck.js
View file

@ -21,6 +21,12 @@ let db = mysql.createPool(mysqlConfig);
function listTables(callback) { function listTables(callback) {
db.getConnection((err, connection) => { db.getConnection((err, connection) => {
if (err) { if (err) {
if(err.code === 'ER_ACCESS_DENIED_ERROR'){
err = new Error('Could not access the database. Check MySQL config and authentication credentials');
}
if(err.code === 'ECONNREFUSED' || err.code === 'PROTOCOL_SEQUENCE_TIMEOUT'){
err = new Error('Could not connect to the database. Check MySQL host and port configuration');
}
return callback(err); return callback(err);
} }
let query = 'SHOW TABLES'; let query = 'SHOW TABLES';